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March 28, 2024, 07:41:38 AM

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#81
Amplifier Discussion / Re: Marshall VS100R transistor...
Last post by markorock37 - March 13, 2024, 03:11:39 PM
I replaced the output transistors (TIP 142, TIP 147) and installed with the micas. Also replaced TIP29C and a J111 that were bad. Im getting a low brightness (not really dim) on my bulb limiter and a buzz/hum through the speaker. No guitar signal coming through. Tested for DC at the output jack and it was at 33V! Shut it down and started testing components. All diodes test good, and all capacitors test good. Checked some resistors in areas i felt were critical and haven't found anything off. Do you think one of the TO92 transistors is at fault? Or did I blow an output again?
#82
Amplifier Discussion / Re: Savage Amplifier
Last post by saturated - March 12, 2024, 09:38:27 PM
Thank you sir seems like from what I have read that you enjoy pedals.  Now I understand why because I had gotten away from them as too much trouble but I have a renewed interest in them now I really had fun playing through all of them last night.

I need some help dialing in the delay pedal though I couldn't seem to get happy with my attempt to obtain a good setting.  It also has echo which gets out of hand quickly

 :P
#83
Amplifier Discussion / Re: Savage Amplifier
Last post by Tassieviking - March 11, 2024, 10:42:34 PM
Most pedals will not turn on unless you have the input jack plugged in, and it has to be a mono plug as well.
The input jack is acting like the power switch as well to preserve the battery when you are not using the pedal.
#84
Amplifier Discussion / Re: Savage Amplifier
Last post by saturated - March 11, 2024, 09:14:03 PM
Nm teh dreaded chainsaw liveth  :-X

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It almost knocked me out too

I had it on the lead channel
I wanted to hear what it would do to the clean channel (of my audition chorus )

I made sure to turn all the volume knobs on the amp all of the way off
I'm standing there and I push the channel select button and I'm hit with the loudest noise I have ever heard  :P

So I reached down and turned down the output knob on the pedal which had been fully clockwise....duh 🤣 o

 :P
#85
Amplifier Discussion / Re: Savage Amplifier
Last post by saturated - March 11, 2024, 08:17:27 PM
I was anxious to try them and haven't tried to play through them but the light comes on in three
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And I couldn't get the chainsaw pedal to light up but it hasn't been connected to an amplifier at least since the early 90s

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They are a bunch of old ordinary pedals but I hope they still work.

Thanks again 👍
#86
Amplifier Discussion / Re: Savage Amplifier
Last post by saturated - March 11, 2024, 08:03:12 PM
Man THANK YOU SIR !! for pointing that out.
:)
I was at work all day and when I got home I ransacked the house looking for a wall wart with a terminal matching the one in this pic from last May

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The one I tried to use yesterday had a 90 deg on the end of it.  I chased down a couple desktop lamps...no.
Kept looking and finally found it in the bottom of a drawer under a bunch of stuff.

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What's crazy is I got this from my friend's junk store told him I needed a 9v adapter he had a mountain of them and handed me this one and I can promise you we were not cognizant of polarity.

Unless...and this was almost twenty years ago...it's possible I had a pedal with me and tried one until it worked...idk...

 :P

#87
Amplifier Discussion / Re: Savage Amplifier
Last post by Tassieviking - March 11, 2024, 11:11:46 AM
I am not surprised that the wall wart did not power the pedals, the polarity is wrong on the plug.
The center pin should be minus and the ring should be plus at 9vDC, your power supply is the opposite.
I hope you have not damaged the pedals with the wrong power supply.
#88
Amplifier Discussion / Re: Savage Amplifier
Last post by saturated - March 10, 2024, 09:21:15 PM
So I dragged all my pedals out and the little power supply I had always used

Could not get a single pedal light to come on

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Next checked it with multimeter read about 18v... :o idk...

Ok opened a brand new 9v...first try no go...trying to remove the battery I guess it was so rusty it ripped the neg terminal off the battery

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So I went back to trying all of them with the wall wart continuously trying to turn it on and off to no avail.

Oh well guess I should play my pedals more than letting them gather dust in a drawer.

Matter of fact last time I used one it had issues but eventually got to working.

 :P
#89
Amplifier Discussion / Re: Savage Amplifier
Last post by saturated - March 10, 2024, 02:43:56 PM
Thank you sir

Somehow I accidentally deleted the NAD post where I brought it home.
Last thing I need is a big heavy combo amp but alas it's not going anywhere.
The sound is heavenly and I need to be playing thru it as it will only help and I can't cover up sloppy playing with teh brootal distortionz.
 :'(
I read about some people jumping channels I'm not brave enough for that.
The downside is I'm a total chorus nut so I gotta bust out my long dormant Ibanez chorus flanger pedal to add some glassy shimmering icepick aspect.
It's definitely not a block logo 5150 that I had but I like that I don't have to put the second volume knob on 0.000000001 to play it at the house. 
But I also dont have instant crunch berries on demand.
 :-X
#90
Amplifier Discussion / Re: Savage Amplifier
Last post by Tassieviking - March 10, 2024, 09:14:52 AM
Ok thanks I put 0.5A and 2A normal fuses in and it's making good sounds but won't make any sound without standby on

I think you are reading the switch wrong, up the amp is on and down the amp is in standby.

Slow blow fuses can also be marked with a "T" it stands for Trög which means slow in some languages. ie. T2A

That polarity switch has me wondering if that amp might be unsafe, if it switches the incoming supply wires around and there is no earth wire on the lead you might have to fix that.
It don't seem old enough for that though
Read up on death caps to check it out.